NAICS 334210: Telephone Apparatus Manufacturing
This industry comprises establishments primarily engaged in manufacturing wire telephone and data communications equipment.  These products may be stand-alone or board-level components of a larger system.  Examples of products made by these establishments are central office switching equipment, cordless and wire telephones (except cellular), PBX equipment, telephone answering machines, LAN modems, multi-user modems, and other data communications equipment, such as bridges, routers, and gateways.

ExioML sector: Electrical machinery and apparatus n.e.c. (31)
Region: US | Year: 2022
Sector value added: 68675.5386579 M EUR | Employment: 809.436143123 thousand persons
Sector GHG emissions: 3051654294.78 kg CO2 eq | Energy carrier net total: 101481.364669 TJ | Carbon intensity: 0.04443582612408031

Company: Ciena Corporation
Ciena develops and markets equipment, software and services, primarily for the telecommunications industry and large cloud service firms. Their products and services support the transport and management of voice and data traffic on communications networks.